Chiayi · Alishan
Bortle 3 · Rural dark sky | Elevation 2488m | SQM ~21.4 | Best view South
The Alishan National Forest Recreation Area at ~2,488 m — Taiwan's most famous sunrise-cloud-sea-stargazing trio. The 360° Ogasawara viewing deck lets you line up an evening cloud sea, a midnight Milky Way and a dawn sunrise in one visit.
🌌 Tonight the Milky Way core climbs to a shootable altitude around 20:14, sinks back near 03:04, and peaks around 22:54 at roughly 37° in the South.
Via Highway 18; park entry fee applies. The Ogasawara deck is a walk from Zhaoping Station — bring a headlamp for the night trail.
Full park facilities: lodging, food, shops and toilets; light is fairly controlled but visitor numbers are high.
Mar–Oct Milky Way season; sunrise and cloud seas pair well year-round.
See the nearby city's stargazing calendar
Bortle class and SQM are estimates for well-known sites, used to compare darkness — not on-site measurements.
Related tools: Taiwan Dark-Sky Map · Stargazing & Moon Viewing Score · Meteor Showers